blob: fd265467859f86c97f16f6abb2cef19ad5b3e139 [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stdint.h>
#include <memory>
#include "base/callback.h"
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "media/base/content_decryption_module.h"
#include "media/base/eme_constants.h"
#include "media/mojo/interfaces/content_decryption_module.mojom.h"
#include "media/mojo/services/media_mojo_export.h"
#include "media/mojo/services/mojo_cdm_promise.h"
#include "media/mojo/services/mojo_cdm_service_context.h"
#include "media/mojo/services/mojo_decryptor_service.h"
#include "mojo/public/cpp/bindings/binding.h"
namespace media {
class CdmFactory;
// A mojom::ContentDecryptionModule implementation backed by a
// media::ContentDecryptionModule.
class MEDIA_MOJO_EXPORT MojoCdmService : public mojom::ContentDecryptionModule {
// Get the CDM associated with |cdm_id|, which is unique per process.
// Can be called on any thread. The returned CDM is not guaranteed to be
// thread safe.
// Note: This provides a generic hack to get the CDM in the process where
// MediaService is running, regardless of which render process or
// render frame the caller is associated with. In the future, we should move
// all out-of-process media players into the MediaService so that we can use
// MojoCdmServiceContext (per render frame) to get the CDM.
static scoped_refptr<::media::ContentDecryptionModule> LegacyGetCdm(
int cdm_id);
// Constructs a MojoCdmService and strongly binds it to the |request|.
// - |cdm_factory| is used to create CDM instances. Must not be null.
// - |context| is used to keep track of all CDM instances such that we can
// connect the CDM with a media player (e.g. decoder). Can be null if the
// CDM does not need to be connected with any media player in this process.
MojoCdmService(CdmFactory* cdm_factory, MojoCdmServiceContext* context);
~MojoCdmService() final;
// mojom::ContentDecryptionModule implementation.
void SetClient(
mojom::ContentDecryptionModuleClientAssociatedPtrInfo client) final;
void Initialize(const std::string& key_system,
const url::Origin& security_origin,
const CdmConfig& cdm_config,
InitializeCallback callback) final;
void SetServerCertificate(const std::vector<uint8_t>& certificate_data,
SetServerCertificateCallback callback) final;
void GetStatusForPolicy(HdcpVersion min_hdcp_version,
GetStatusForPolicyCallback callback) final;
void CreateSessionAndGenerateRequest(
CdmSessionType session_type,
EmeInitDataType init_data_type,
const std::vector<uint8_t>& init_data,
CreateSessionAndGenerateRequestCallback callback) final;
void LoadSession(CdmSessionType session_type,
const std::string& session_id,
LoadSessionCallback callback) final;
void UpdateSession(const std::string& session_id,
const std::vector<uint8_t>& response,
UpdateSessionCallback callback) final;
void CloseSession(const std::string& session_id,
CloseSessionCallback callback) final;
void RemoveSession(const std::string& session_id,
RemoveSessionCallback callback) final;
// Get CDM to be used by the media pipeline.
scoped_refptr<::media::ContentDecryptionModule> GetCdm();
// Callback for CdmFactory::Create().
void OnCdmCreated(InitializeCallback callback,
const scoped_refptr<::media::ContentDecryptionModule>& cdm,
const std::string& error_message);
// Callbacks for firing session events.
void OnSessionMessage(const std::string& session_id,
::media::CdmMessageType message_type,
const std::vector<uint8_t>& message);
void OnSessionKeysChange(const std::string& session_id,
bool has_additional_usable_key,
CdmKeysInfo keys_info);
void OnSessionExpirationUpdate(const std::string& session_id,
base::Time new_expiry_time);
void OnSessionClosed(const std::string& session_id);
// Callback for when |decryptor_| loses connectivity.
void OnDecryptorConnectionError();
CdmFactory* cdm_factory_;
MojoCdmServiceContext* const context_ = nullptr;
scoped_refptr<::media::ContentDecryptionModule> cdm_;
// MojoDecryptorService is passed the Decryptor from |cdm_|, so
// |decryptor_| must not outlive |cdm_|.
std::unique_ptr<MojoDecryptorService> decryptor_;
std::unique_ptr<mojo::Binding<mojom::Decryptor>> decryptor_binding_;
// Set to a valid CDM ID if the |cdm_| is successfully created.
int cdm_id_;
mojom::ContentDecryptionModuleClientAssociatedPtr client_;
base::WeakPtrFactory<MojoCdmService> weak_factory_;
} // namespace media